Skagerrak in the context of "Southern Norway"

Norway, officially the Kingdom of Norway, is a Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of Norway. Bouvet Island, located in the Subantarctic, is a dependency, and not a part of the Kingdom; Norway also claims the Antarctic territories of Peter I Island and Queen Maud Land. Norway has a population of 5.6 million. Its capital and largest city is Oslo. The country has a total area of 385,207 square kilometres (148,729 sq mi). The country shares a long eastern border with Sweden, and is bordered by Finland and Russia to the northeast. Norway has an extensive coastline facing the Skagerrak strait, the North Atlantic Ocean, and the Barents Sea. In 2024, Norway was ranked the seventh happiest country in the world.

The unified kingdom of Norway was established in 872 as a merger of petty kingdoms and has existed continuously for 1,152–1,153 years. From 1537 to 1814, Norway was part of Denmark–Norway, and, from 1814 to 1905, it was in a personal union with Sweden. Norway was neutral during the First World War, and in the Second World War until April 1940 when it was invaded and occupied by Nazi Germany until the end of the war.

The coastline of Norway is formed along the Skagerrak, North Sea, Norwegian Sea, and Barents Sea. This considers only the mainland coastline and excludes Svalbard.

A straight line along Norway's sea borders (the coastal perimeter) is 2,650 kilometers (1,650 mi) long. Along the coast there are many fjords, islands, and bays, resulting in a low-resolution coastline of over 25,000 kilometers (16,000 mi). At 30-meter (98 ft) linear intercepts, this length increases to 83,281 kilometers (51,748 mi) (see the coastline paradox). Much of Norway's wealth is linked to its long coastline; for example, the petroleum industry, maritime transport, fishing, and fish farming.

Øresund or Öresund (UK: /ˌɜːrəˈsʊnd/, US: /ˈɜːrəsʌn, -sʊnd, ˈɔːrəsʊnd/; Danish: Øresund [ˈøːɐˌsɔnˀ]; Swedish: Öresund [œːrɛˈsɵnːd]), commonly known in English as the Sound, is a strait which forms the Danish–Swedish border, separating Zealand (Denmark) from Scania (Sweden). The strait has a length of 118 kilometres (73 mi); its width varies from 4 kilometres (2.5 mi) to 28 kilometres (17 mi). The narrowest point is between Helsingør in Denmark and Helsingborg in Sweden.

Øresund, along with the Great Belt, the Little Belt and the Kiel Canal, is one of four waterways that connect the Baltic Sea to the Atlantic Ocean via Kattegat, Skagerrak, and the North Sea; this makes it one of the busiest waterways in the world.

The Danish straits are the straits connecting the Baltic Sea to the North Sea through the Kattegat and Skagerrak. Historically, the Danish straits were internal waterways of Denmark; however, following territorial losses, Øresund and Fehmarn Belt are now shared with Sweden and Germany, while the Great Belt and the Little Belt have remained Danish territorial waters. The Copenhagen Convention of 1857 made all the Danish straits open to commercial shipping. The straits have generally been regarded as an international waterway.

The Kattegat (/ˈkætəɡæt/; Danish: [ˈkʰætəkæt]; Swedish: Kattegatt [ˈkâtːɛˌɡat]) is a 30,000 km (12,000 sq mi) sea area bounded by the peninsula of Jutland in the west, the Danish straits islands of Denmark and the Baltic Sea to the south and the Swedish provinces of Bohuslän, Västergötland, Halland and Scania in Sweden in the east. The Baltic Sea drains into the Kattegat through the Danish straits. The sea area is a continuation of the Skagerrak and may be seen as a bay of the North Sea and North Atlantic Ocean, though it is not called a bay in traditional Scandinavian usage.

The Kattegat is rather shallow and can be dangerous to navigate due to many sandy, stony reefs and the tricky shifting currents. In modern times, artificial seabed channels have been dug, many reefs have been dredged either by sand pumping or boulder clearance, and a well-developed light signaling network has been installed to protect the heavy international traffic on this small sea.

Tønsberg (pronounced [ˈtœ̂nsbær(ɡ)] ), historically Tunsberg, is a city in Tønsberg Municipality in Vestfold county, Norway. It is located about 102 kilometres (63 miles) south-southwest of the capital city of Oslo on the western coast of the Oslofjord near its mouth onto the Skagerrak. The city is the most populous metropolis in Vestfold county. Tønsberg also serves as the administrative centre for Vestfold county and the seat of the County Governor of Vestfold og Telemark.

Tønsberg is generally regarded as the oldest city in Norway, founded in the 9th century. Snorri Sturluson mentions the town in Harald Hårfagre's saga (written around 1220) before the battle at Hafrsfjord, which historians have traditionally dated to the year 872, therefore the town was in existence by 871 at the latest. This dating is again based on Are Frode's book, Íslendingabók. Using this information, Tønsberg celebrated its one-thousandth anniversary in 1871 and its 1100th anniversary in 1971. Archaeological findings confirm that there was a farm settlement in Tønsberg at the end of the 8th century, which likely developed into a town during the early 9th century.

Bohuslän (Swedish pronunciation: [ˈbûːhʉːsˌlɛːn] ) is a Swedish province in Götaland, on the northernmost part of the country's west coast. It is bordered by Dalsland to the northeast, Västergötland to the southeast, the Skagerrak arm of the North Sea to the west, and the county of Østfold, in Norway, to the north. In English it literally means Bohus County, although it shared counties with the city of Gothenburg prior to the 1998 county merger and thus was not an administrative unit in its own right.

Bohuslän is named after the medieval Norwegian castle of Bohus (Norwegian: Båhus). Under the name Båhuslen (Bohuslen in Danish), it was a Norwegian county from the Norwegian conquest of the region from the Geats and subsequent unification of the country in the 870s until the Treaty of Roskilde in 1658, when the union of Denmark–Norway was forced to cede this county, as well as Skåneland (part of Denmark proper), to Sweden.